Chair-tip



N. STOCK.

CHAIR TIP.

APPLICATION FILED FEB. 28, 1918.

1,356,798 Patented Oct. 26, 192 0 ATTORNEY weaves.

' chairs, will be prevented. A I also propose to convenient to NICHOLASSTOCK, 0F

CHAIR-TIP.

I propose" in the present embodiment ofmy invention to provide a tip,.theshank of which is immovablewith respect to the pad,

and which maybe directly inserted in a-bore' previously drilled in thechair. leg, and nonrotatably heldtherein, .to the end that a specialsocket such as disclosed in my Patent No. 771,679 of. October .ith,1904, will be eliminated and loosening 01- dropping of the tip byrotation of the'padsuch as may be caused by constant movement'about ofthe obviate any danger of damaging or splitting the chairlegs, some ofwhichare very delicate, such damage having been caused in the past wherea relatively-large bore was requiredtobe made in the leg or where atapering screw shank was employed, and inserted without previouslyproviding a bore in the leg.

Anotherobject s to provide a tipwliic'h will always maintain anon-scratching surface, even thoughthe pad portion becomes entirelywornjaway. H I A still fur her object is to provide for the elasticreten on of the tip in the chair-leg Zwithout danger of its droppingout, at the moval and renewal. without injur-yf' to .1 the same timepermitting of its "convenient reg chair leg, and without. the necessity,f b ring the' same. 1 a w With-these and bodiments of my. invention areshown 1111,; e

' accompanying drawings, and 1thes e-emb o diinents will be hereinafter"ore' fully' -described. with reference thereto, and 'the inSpecification of Letters Patent. 1

other objects in in;

KINGSTON, mew Yomz.

Patented Oct. 26,1920.

Applicationfiled-February 28, 1918. Serial No. 219,549.

. vention clalms.

will be finally pointed out in the In the drawings: 1

Figure 1 is a side elevation of one embodiment of myimproved tip;.

. Fig. 2 is a plan view thereof;

V Fig. 3 is a verticalsectional view of the end of a chair leg, showingthe'same bored previous to the insertion ofthe tip;

Fig. iiisan end view thereof;

Fig. 5 is a verticalsectional view partly in elevation, showing the endof a chair leg wi-th the-tip attached;

1 Fig. 6 is-a transverse sectional view taken along the line 6-6 of-Fig.,,5 and Fig. "7: is'a form of tip.

side elevation of a modified,

Similar reference characters indicate corresponding parts throughout thedrawings; Referring to the drawings, and more-particularly'to Flgs. 1and 2 thereof, the embodiment of my invention shown therein comprises ash ank 1 0, provided with longitudinal reeds-or ribs 11'," and having atits 1 upperend a tapered guide nose 12 forming at the upper extremity ofthe reeded portion a lateralshoulder 13. The lower end'of the shank ispreferably plain or smooth as at 14 at that portion thereof which isem.-

' bedded in the pad.15, formed of rubber dr- *other suitable substance,and at its end is 'providedfwith a metallic head 16 of bowl shape,the-said head being of gradually decreasing ;thi okness toward itsperipheral f portion, and having a smooth convex exteriorsurfa'ce '17Thechead 16 is solid at its center. portion," and, provided with spacedopenings [18 v extending therethroug'h in- .wardlyi'of its'perimete IThe rubber tip is molded uponthe head 16 and, the rubber" enteringwithin the open- '=1ngs f1 8'fprejient sI any-possibility of rotat'mn ithereof, this-[result beinglenhanced by the trelatively lar'gejwall;surface 19 of the said openings. Thebowled head provides a sec- ..jwhenthe-pad 10 becomes worn' to such an extent .that 'th e head is exposed,so that even though the rubber becomes worn out, there Y .will be nodanger of marring thefioor, The

'ondary' non scratching wearing surface w rubber between the uppersurface ofthe pad and the interior surface of the head 16 issubstantially dove-tailed in crosssection, so

that lateral displacement of the pad away from the shank is prevented,which lateral slightly less than that of the shank 10, or

in other words, equal to the'diameter of the shank less the reededportion.

The beveled nose 12 isrinserted .in the i bore, and the shoulder 13enables the shank to be properly positioned prior to driving the sameinto the bore. At the same time the upper ends of the reeds formed bythe shoulders, constitute sharp cutting edges which cut into the wood ofthe chair leg. The shank is driven straight into the bore, and the woodenters .between the reeds as at 22, as clearly indicated in Figs. 5 and6, so that rotation of the shank is prevented, and in turn theconnection between the shank and the pad prevents rotation of the padwith respect to the chair leg.

Because of the elasticity of the' wood, the shank is tightly held withinthe bore, and there is no danger of the same dropping out. In order toremove the tip after the same has become worn, it is only necessary topull the shank, without turning, from the bore, or a suitable tool maybe inserted between the end of the chair and the tip and the shank. Anew tip may thereupon be inserted, the reeds of the same being engagedwith the channels formed in.

the bore by the removed tip, and as above stated, the elasticity of thewood will serve to positively retain the same without danger of droppingout.

In Fig. 7, I have illustrated a slightly modified form of tip, in whichthe reeded shank 10 is. non-rotatably secured to a metal cap 23 to whichthere is secured by means of an over-turned flange 24 a pad 25 formed ofleather or other suitable substance. The cooperation between this tipand the chair leg is the same as that of the tip shown in Figs. 1 and 2,that is, the pad is non-rotatable with respect to the shank, and theshank is non-rotatable with'respect to the chair leg.

I have illustrated preferred and satisfactory embodiments of myinvention, but it is. obvious that changes'may be made therein withinthe spirit and scope thereof, as defined in the appended claim.

I claim An improved furniture pad comprising an attachment member havinga shank, a convex concave circular head at one end' of the shankintegral therewith and coaxial thereto and flaring from the shank and atits interior side concave to the shank to form a bowled circular head,and a single piece cushion member molded on said end of the shankcentrally and coaxially with the shank and bowled circular head,completely inclosing and covering all parts of said circular head, saidshank having on its upper end an upwardly tapering guide nose andprovided with longitudinal ribs extending from said guide nose to apointadjacent to said bowled circular head, the shank also having asmooth reduced portion within the concavity of said bowled head andextending from the inner surface of the latter to the lower ends of saidribs, said circular head having substantially circular openingstherethrough arranged about the shank and spaced forwardly fromthe rimof the head, said rim being continuous and uninterrupted and saidopenings having annular flat walls whereby to prevent cutting of saidcushion and to support said cushion from vertical and lateraldisplacement from the head,'the exterior side of said bowled circularhead and the tip end of the shank being on the same continuous unbrokenconvex curve. F

- In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two subscrlbing w1tnesses.'

NICHOLAS. s ooK.

Witnesses:

LUTHER S. DECKER, WILLIAM A. Rnis.

